wagner



Feb. 13, 1940. M. WAGNER PERMANENT MOLDING APPARATUS Filed Oct. 21, 1938 10 Sheets-Sheet 1 INVENTOR. M. WAGN ER.

ATTORNEY.

Feb. 13, 1940. M. WAGNER I :ERMANENT MOLDING APPARATUS Filed Oct. 21, 1938 10 She ets-Sheet 2 INVENTOR. M. WAGNER.

TTORN Feb. 13, 1940. M. WAGNER PERMANENT MOLDI NG APPARATUS 1o Sheets-Sheet 5 Filed Oct. 21, 1938 7 4 4 f 5 ||1 a 1/ 5 3 5 .I 3 IHI E P IAI. z 3

o 9 m x Z 3 5 0M i v u w 3 5 5 o 5 \I a m 3 INVENTOR. M .WAGNER ATTORNEY.

Feb. 13, 1940. M. WAGNER 4 2,190,496

PERMANENT MOLDING APPARATUS Filed Oct. 21, 1938 10 Sheets-Sheet 4 P .r. g.

INVENTOR.

M.WAGNER.

" ATTO BY.

Feb. 13, 1940. WA 2,190,496

I PERMANENT MOLDING APPARATUS Filed Oct. 21, 1938 10 Sheets-Sheet 5 m 'ENTOR. M.WAGNER.

By: ATToRzYv M. WAGNER PERMANENT MOLDING APPARATUS Feb. 13, 1940.

l0 Sheets-Sheet 7 Filed Oct. 21, 1938 Y R O T T A Feb. 13, 1940.

M. WAGNER PERMANENT MOLDING APPARATUS Filed Oct. 21, 1938 i0 Sheets-Sheet s- 1N VENTOR.

ATTORN Feb. 13, 1940. v AGNER 2,190,496

PERMANENT MOLDING APPARATUS Filed Oct. 21, 1938 10 Sheets-Sheet 9 E I li T 2.1.5

293 21:9 Z56 ze'v 5 342 v .l294 I M WINVENTOR.

AGNER. 212 28: BY f 273 543 v ATTO Feb. 13, 1940. M. WAGNER 2,190,496

PERMANENT MOLDING APPARATUS Filed Oct. 21, 1938 lo Sheets-She'et 1Q IZ84- tz7z I N VEN TOR.

M.WAGNER.

ATTOE I EY.

v Patented 13,1940

UNITED STATE PERM EN MOLDING APPARATUS 'Matthew Wagner, Glendale, Calif.

j 10 .Claims.

This invention relates. to'improye ments in mechanioal molding devices. I I I The general object of t vide a mechanical: mold, device which is particu- 1arly adapted for us gineblo'cks;

Another object o mechanical mold which inc w separating the mold body.

1 .thfinventio'n' is; to. provide a ludes novel means for n'ent' core members a ing'the core'memb'ers.

Other objects and the adv scriptio'n "taken connection with t i Fig. 5 is a section taken SU -showing ane ia-m an open position) Fig. 7 is'a fragmentarysectiontakenoniine 1 1Iof Fig.4 with the moldbase removed;

" "g1 8 is a fragmentary "view 'si moved;

a fragmentary. section taken' on line e of Fig; i with the engine bloc}: removed;

- 60 16 is anfrag mentary side eleva in -section of the control" device;

. Fig. '17 isy'a longitudinalsec control cylinder not sectioned'in Fig. 16- v mgr-13' is a diagram or the: electrical rat-us 66 find circuit-of operating' the control de vicei and he invention is to pro e inthe manufacture of en- A iur'therobject of the'inventio nis to'previde a mechanical mold which includes novel permand novel nieansfor' remove.

,2; Of ill-u 15 vention will be apparent fromthe following de he accomm j' mpreved evice' showing it in -an open po e. mold device, show;

agmentaryfsectiontaken I sun-tsetse Fig. ,4; 1 Fig; 6' is a fragmentary'view similarto Fig. 5

ilar to Fig. 4 f ri -e 9 lot Fig. 5;

ry sectiontaken oniline' taryxsection; taken on line 3v is aifra gmentary sectiontaken on line I4" l4" of FigI twith the end'core member re:

tion partly tionthrough the i .Application()i'ctober1938, Serial No. 236,230

Fig. 19 is a diagramshowing the conduit connections between the control device and the various operating cylinders of the mold device.

Referring to the drawingsby reference characters I have indicated ,my improved molding apparatus generally at it). As shown theappai" ratus includes a lower frame l2- and an upwardly extending frame I3. I In "generalthe mold proper includes a base member M which is supported onthe lower frame i2, a pair-of opposed horizontally movable mold bodyv members 15 and. I6 and an angularly movable member l'! which are'supported on the mold proper further includes a vertically movable top member l8 and thereabove a verticallymovable gate and core. supportingymember l9. Also -,mounted' on the mold base 14 the-apparatus includes a pair of longitudinally movable end core members, and 2|. Y

.The mold base I 4 has a'central aperture 22 therein in which are positioned apluralityof ver- 1 tically movable crank case core members .23, 24. 25, 26, 21 and 28; The body of the mold basel4 surrounding theaperture 22 isformed hollow and I hasan inlet :conduit 29. andan outlet conduit 30 communi'cating'with the-interior thereof for the purpose of circulating oil therethrough .to main-.-. tain the base M at a predetermined temperature '(see-Figs.5and6).f

v As previously stated, the apparatus. .10 is designed to form the block portion of an internal combustion .engine which I have indicated gen- I- erally at 31. The generalstructure of internal combustion engine's-being so well known it. therefore is thought unnecessary-to specifically identify the various structural detailsof the engine block 3|. The engine-block 3'! shown is preferably of the type-used for a vertical four cylinder poppet valve type internalv combustion engine although my apparatus may be used in 1 manufacturing other engine'blocks. g The body member 15 is adapted toform one I 1 half or the righthalf'of theblock 3| and the inner face thereof is shaped as at.32' to form the outer 'face of the water jacket andshaped as at 33 to form the outer'surface of the'cylinde'rs. The body is also shaped as] at 3.4 to form the? outer surface of the crank case and'as at 35 to form the crank ease pan supporting flange. The 5 body l5 like the base 14' is formed hollow and has an inlet conduit 36 and an outlet conduit 31, communicating with theinterior thereof for the; purpose of "circulatingtemperatu're controlling oil therethrough. The body'l'iadjacent each end-' PATENT OFFICE base 14 Y When the mold is closed. The mold includes adepending rail portion 38 which fits within a guide recess 3! in the base Ml.

, one of the vertical guide rails 33.

To receive the body member l5 when it is moved outwardly I provide a vertically movable table it the upper face of which when in a raised position is in the same plane as the upper face of the mold base 14. In the upper face thereof the table to has guide recesses ii therein which align with the guide recesses in the mold base 14 and are adapted to slidably receive the body rails 38. Y I

The table id is mounted on a frame M which includes four vertical guide rails 53. The table 48 includes four protruding guide members 4i each of which has a notch 45 therein to receive fluid under pressure enters the cylinder or is exhausted therefrom after.

Positioned below thetable ts I provide apair of cylinders 53 and Meach of which has a piston 55 therein and a piston rod 5%; extending. therefrom. The table includes a pair of suitably as will be explained hereinapertured depending bosses 5'! in which the uppiston rods 56 and retained. in lateral alignment by the guide members M and the guide rails per ends of the piston rods 5% are positioned and secured. Thus the table to is supported on the Adjacent the lowerend of the cylinders 53 and 54 a conduit 58 communicates with the interior thereof and the top a conduit59 communicates with the interior thereof; Each of the conduits 53 communicates with a common conduit 68 and each ofthe conduits 55 communi cates with accmmon conduit M for the purpose of directing fluid into or out of the cylinders'as will be explained hereinafter.

'When the mold apparatus opens, tl'1e piston 4? through the medium of the piston rod 58 moves the body memberlE onto the table A8 as. shown in Fig. 1, and thereafter the pistons 55' through 1 the medium of the piston rods 5i: lower the table 40 to a position wherein the upper surface of the body I5 is below the upper surface of the mold base It as shown in Fig. 2. i

When the mold device closes, the pistons 55 through the medium of the piston rods 56 raise the table 4d to a position wherein the upper surface thereof is flush with the upper surface I of the base I i and thereafter the piston il through the medium of the piston rod 33 moves. :the'mold body member l5 inwardly into engagement with the mold body it.

The mold body member it is adapted to form the major portion of the left half of the block it and the inner face thereof is shapedas' at $2 (see Fig. 9) to form the outer face of the water jacket and at 63 to form the outer faces of the cylinders. The member iii is also shaped as at 64 (see Fig. 5) to form'the outer face of the crank case and as .atBS toform the crank case supporting flange. g At the forward end of the block 3i, due to a recess indicated at 66 Fig. 12,- it isimpossible for the body member if: to form the entire half of the block at that end and due to a reverse cur- Mounted on 16 a predetermined distance. When the mold; device closes the fpiston'l'l through; the medium cylinders and the'lower face thereof is rece'ssed};

has an elongated recessYfi'l'therei'n to formQa is in alignment with the itappetkrecess." (See Fig.

' the moldmem rs s9 and in to form the inter: I

mediate portion "of-the outer surface'of the block} mounted on anjapron 94 integral withu and extending outwardlyfrom the mold body 'lfi.

vature, indicated at 61 inFig. ll, itis impossible" for the body member i5 toform this portion of I the block. This portion of the block, which it is] impossible to form with either the mold body 15 1; or I6, is formed by the angularly movablemem- 5 ber ll whichwill be more fully; described hereinj' 1 after. -Likewise the mold member. it, does not form the tappet chamber but has a recess -58; therein in which are positioned a lower mold member 69, an upper mold member- "Hi and an; 10; intermediate-mold member ll. J

The mold body Hi like the mom body 55 isv formed hollow and hasan inletconduit "i2 and an'outlet conduit 13 communicatingfwith the interior thereof for the purpose of circulating tom-15' v perature' controlling oil therethrough. I Extending from the mold base it on the same side as the mold body it-I provide a table portion It which is supportedon a frame 75. Mount-- ed on thetable M I provide a cylinder having 20 a piston ll therein and a piston rod-i8 extending I therefrom. The piston rod 78 isysecuredto' a; pair of protruding bosses i9 onffth'e mold body H5 by a bolt 80; I Adjacent the inner end thereof the cylinder lii 125 has a conduitv 8! (Fig; 1") communicating with", f the interior thereof and adjacent the outer end r a has a conduit t2 communicating. with the inte rior thereof by means of which ,iiuid is'directed into or is exhausted therefrom as will be "ex 3Q plained hereinafter. I Thebody it adjacent each end thereof includes 2. depending rail portion- 83 (Fig. 9) which fitswithi'n' a guide recessil i v in the table it and a guide recess 8% infithe table 14'. j j i y I 35 When the mold apparatus opens the piston 71 j "through the medium of the'piston, rod 18 moves the mold body l6 outwardlytoward the cylinder "Q11? of the piston'rod 78 "moves the mold body lff inwardly into engagement with the mold body I 5-.- I

The inner end 85 of the'lower tappet forming recess mold member 69 is shaped to formv the lower portion of the outersurface'of the block 4611 as at'86 to form the requirednumber or lowe v valve guide bosses. (See Figs. Sand 11.) Fur thermore the lower face of the mold member .69.

flange at the outer portion of the tappet recess. U

The inner end illi'of the upper tappelt recess} 5 1 forming mold member It} is shaped to form the outer. surface of that partof the cylinder which; 5

55.11 I 5.) The upperface of the-mold memberlfl is 7 recessed as at;89 to form the required number 7. of upper valve guide bossesx-and has an elongated recess 90 therein 'to form" adepending flange'at the outer portion of 'the'tappet recess. '1 The mol'd'member'll is positionedbetweenthe ,1 mold members 69 and 1E! and the inner end 1192: thereof is shaped similar to the innerjends' or; I

cylinders.- Positioned below the lower mold member .69

I provide a pair of spaced'vertical. cylinders 93;] j

(See Figs, 3 and 9.)" The cylinders 93 are' 705 Furthermore the cylinders 93' extend through suitable apertures in the apron 94 and. are positionedin slots 95 inthetable 14.; Each of the] cylinders 93 has a piston 96 therein and a-piston rod 9! extending therefrom. I v

The mold member 69 includes a pair of suit-r 4 ablyapertured depending bosses 98 in which the '5; upper ends. of the piston rods 9I.are positioned. and secured. Thus it will be seen .that the mold member 69 is supported on the piston rods 91.

At the lower ends thereof the cylinders 93 each include a conduit 99 communicating with 10; the interior, thereof and adjacent the upper ends a conduitI communicating with the interior thereof for the purpose of directing fluid into or I out of the cylinders as will be explainedhere inafter.

; Positioned below the lower mold member 69 and at the outside of the cylinders 93 I provide a pair of vertical cylinders -IOI. (See Figs. 3 and 9;) The cylinders IOI like the cylinders 93 are mounted on the apron 94 extending through :2;suitable apertures therein and positioned in the slots 95 in the table I4. Each of the cylinders IOI has a piston I02 therein and a piston rod I03 extending therefrom.

The mold member 10 includes a pair of suit 2&5; ably apertured depending bosses I 04 in which the 3 upper ends of the piston rodsI03 are positionedand secured. Thus it will be seen that the mold member I0 is supported on the piston rods. I03.

At the lower ends thereof the cylinders IOI aoejeach includes a conduit I05 communicating with the interiorthereof and adjacent the lower end;

has a conduit I06 communicating with the interior thereof for the purpose of directing fluid into or out of the cylindersas will be explained 35 hereinafter.

Mounted on and arranged above the table" and 'spaced from the body mold I6 I provide a pair of,-spaced brackets I0'Ihaving opposed slots I08 therein. The slots I08 are of the same, 40 height as'the mold memberll and the inner ends of the brackets I0! are close enough to the outer ends of. the mold members 69- and I0 so that.

when themold-member II is beingmoved outwardly the inner end of the mold member II has a -conduit II5 communicating with the inte-.

"rior thereof and adjacent the inner end a conduit II6 communicating with the interior thereof for the purpose of directing fluid into or out of the f cylinder as will be explained hereinafter.

f" When the mold device opens and before the body mold member I6 moves outwardly the piston IIO through the medium of the piston rod II2: moves the mold member II rearwardly into 65 the brackets I01 as shown in Figs. 1 and 6.. Im-

mediately thereafter and before the body mold member I6 moves outwardly the pistons I02 through the medium of the piston rods I03 move the upper mold member I0downwardly. At the ;.same time the pistons 96 through the medium of the piston rods 91 move the lower mold member 69-upwardly a predetermined distance into engagement with the mold member I0 as shown in Fig. 6. Thus the mold members 69 and I0 are 75 a positionto clearjthe upper, and lower .valve.

guide bosses-on the block 3| when the mold body 7 I6 movesjoutwardly.

To form the chamberin the water jacket of theengineblockBI I employ a sand core I I! having core prints I I8 which extend above the upper surfaces of the body mold members I5 and I6 and beyond the periphery of block SI and rest on the'upper surfaces of the body mold members I5 and I6 as shown in Figs. 5 and 9.

The upper surfaces of the mold mody members I5 and I6 have a plurality of gas escape recesses I H9 therein to relieve the gas pressure when the block is poured.

The angular movable mold member I! is adapted to form the facesqof the recess 66 and the reverse curve 61 at the front end of the block 3I. As shown the mold member I! is formed hollow-and, includes .a portion I20 below the level of the water jacket of the block which projects into a recessed portion I2I of the mold body I6, (see Fig. 12). The portion I20 includes a portion I22 which projects towards the engine block 3I to form the reverse curve portion 61 of the block.

,The, mold base- I4 at one end includes an integral solid extendingtable portion I23 andat the opposite end a similar table portion I24. The mold member [1' includes apair of spaced depending rail members I25 which are positioned in guideslots I26 in the, base I4 and the base table I 24.

Adjacent one end the mold member I! has an inlet conduit I2I communicating with the interior thereof and adjacent the opposite end has an outlet conduit I28 communicating with the interior thereof for the purpose of circulating temperature controlling oil through the mold member.

Mounted'on a supporting frame I29 extending from. oneside of the frame 42 I provide a cylinder I30 which has a piston I3I therein and a piston rod I32 extending therefrom. Adjacent the inner end the cylinder I30 has a conduit I33 communicating with the interior thereof and at the opposite end has a conduit I34 communicating with the interior thereof for the purpose of directing fluid into or out of the cylinder as will be explained hereinaften The piston rod I32 is connected to a pair of protruding bosses I35 by a pin I36.

, When the mold device opens the piston I3I through the medium of the piston rod I32 moves the mold member II outwardly at approximately the same time as the mold body I5 moves outprotruding portions of the rearend of the block I and as indicated at I39 toform the outwardly projecting portion of the rear main bearing'bo ss portions such as indicated at I39 to form'vario-us of the block. The core member 20 is formed hollow and has an inlet conduit I40 and an outlet conduit I4I communicating with the interior thereof for the purpose of circulating temperature controlling oil therethrough. Depending therefrom the core member 20 includes a pair of spaced rail members I42-whicl1 are positioned in guide grooves I43 in the mold base I4 and the base table I23.

Mounted on the base'table I23 I-proVide a cylinder HM having a piston'MEl therein and a piston rod I48 projecting therefrom which is secured to a pair of spaced projecting bosses Hi1] on the core member 28 by a pin I48. Adjacent the inner end thereof the cylinder M3 has a conpiston I85 through the medium of the pistonrod to receive the end coremember 21.

I46 moves the core member 29 inwardly.

As shown in Figs. 12 and 13 the mold'body I6 and the mold member I1 are recessed as at IEI The inner face of the core member 2I has a'plurality of protuberances thereon such as indicated at I57. to form variou portions of the front end of the engine block SI and is recessed as at I53 to form the outwardly projecting portion of the front main bearing boss of-the block. The core member 2| is formed hollow and has an inlet conduit I54 communicating with the interior thereof and an outlet conduit I55 communicating with the interior thereof for the purpose ofcirculating temperature controlling oil therethrough. 'Depending therefrom the core member 2I'includes a pair of spaced rail members I55 which are posl-' tioned in guide grooves I51 in the mold base I I and in the base table I29 (see Fig. 13).

Mounted on the base table I28 I provide a cylinder I58 having a piston I 59 therein and a piston rod I68 extending therefrom which is secured to a pair'of spaced projecting bosses mi '011 the core member M by a pin I82. Adjacent the inner end thereof the cylinder I53 has a conduit I93 communicating with the interior hereof and adjacent the outer end a conduit Hi l coinmunicating with the interior thereof for the vpurpose of directing fluid into and out of the cylinder as will be explained hereinafter;

When the mold device opens, the piston i through the medium of the piston rod Iii?) moves the core member 2i outwardly a predeterm ned distance and when the mold device closes piston I59 through the medium of the piston rod I8?! moves the core member 2! inwardly.

At each corner of the frame I provide a vertical cylinder it?! each of which has'apisten I66 therein and a piston rod 561 extending therefrom. The upper portions of the piston rods Hi1 are positioned in guide members i653 mounted on the frame I3. adjacent the top thereof.

Adjacent the lower ends thereof each of the cylinders 35 has a conduit 199 communicating with the interior thereof adjacent the upper ends eacho-f the cylinders I55 has a conduit E15 communicating with the interior thereof for 6.1- recting fluid into and out of the cylindersas will --be explained hereinafter. 1

The top member I8 is formed hollow and at each end has a pair of arms I'II extending therefrom, Each of the arms In has aperture I'ii' therein in which one of the piston rods Itl is positioned and freely slidable thereti'irougli. Mounted en each cfthe piston rod it? a we determined distance below each of arms iii I provide a collar I12 which is secured to the piston rods by a pin I12.

The top member I8 has an inlet conduit I13.

and an outlet conduit I14 communicating with I the interior thereof for circulating temperature:

controlling fluid therethrough.

- On the same side of the apparatus as the mold body It the top member I8 is recessed as 'atIlS to receivea'horizontally movable coremember'g. I18. Opening through the top and bottom there of the top member I8 has a plurality of 'con duits 11 therein which direct molten'metal-to' the block formingrecesses of the device. I

V The core member I16 includes a hollow body portion I'Id'and a rearwardly extending table portionI19. lhetalole portion I19 extends'be yond'the sides of the body portion I18 and'is po sitioned in guide slots I89 formed in the top. member I8. -The body portion I18 at each side thereof includes protruding rail members I 8 I- on the same plane as the table portion I19 which are positioned inthe guide slots I 88' (see Fig.

The body portion I18 depends below the 20 zitv bottom of the top member I8 and is positioned in the recess I38 in the mold body I8. (See Fig. 9.)

Protruding from the inner face and adjacent I the bottom thereof the body I18 includes 'ap'lureality of cylindrical exhaust port forming core members I82 which are shown as-fourin nurn bar and a plurality of cylindrical inlet port form: ing core members I33 which are shown as two in number. The body portion I18 of the core member I18 has an inlet. conduit I89 and anoutlet conduit I85 communicating with the. interior thereof for circulating temperature controlling;-

' fluid therethrough.

Mounted on the top member I8 adjacent each side of the recess I15 I provide a cylinder I86 each.

of which has a piston I81 therein and a piston .rod I88 extending therefrom which is secured'to ,1 w an upwardly and outwardly extending arm'IBS; I

integral with the table portion I19 of the device I18.- Adjacent the inner end thereof each of the cylinders I88 has aconduit I90 communicating with the interior thereof and adjacent the'outer W end a conduit I9I communicating'withthe in-- terior thereof for directing fluid into and-out of the cylinder as will be explained hereinafter.-

When the mold device opens the pistons I81 v through the medium of the piston rods I88 movef the core device I-16C0utWardly a predetermined distance and thereafter the top member I8 is moved upwardly a" predetermined distance by? the piston rods I61 as will be more fully explained] hereinafter.

The gate and core supporting member I9 in cludes a pouring gate body portion I92,"a core supporting member I 93 and a header member I94}; The body I92 has a centrally located aperture I95 therein which togetherwith the top. member I8 I forms a gate chamber into which molten. metal is pouredwhich then flows through the gate con-4 duits I11 into the block forming recesses of the.

Surrounding the gate aperture "the body I92 is formed 'hollow and has an inlet-. conduit I96 and an outlet conduit I91 communieating with the interior thereof for circulating. temperature'controlling fluid therethrough. "Extending outwardly from each end thereof the gate body I92 includes a pair of arms I98 each of which is apertured as at I99 to receive one ofthe I piston rods I81 to which the arms are secured as apparatus.

by a pin 299.

The core supporting member I93 includes a pair of spaced end portions 28I connected by a raised central portion 282 which is of less width" (See Figs/1 and '5.) g

than the end portions 2!.

Extending outwardly from each of the end -p'or tions 20Ithe member I93 includesa pair of arms 1 203 each of which is apertured as at204 to'receive one of thepiston rods I61. The member I93 is shown as retained in engagement with the mem-' ber I92 by collars 205 mountedon the piston rods I61 and secured: thereto as by pins 206. v

The central portion 202 of the apparatus I93 I supports a pluralityof depending cylinder forming core members 20'! "which are shown as four in number. The core members 201 are formed hollow with the lower ends closed and the upper ends open; The central portion of the apparatus 202 further supportsa plurality of depending exhaust valve aperture forming "core members 208 which are shown as four in numberand a plurality of.

inlet valve aperture 'formingcore members 209. which are shown as" four in number. The core a membersz 3 and20S=are formed hollow. with the lower, ends closed"- and are open at the top. The lower ends; of thejcoreimembers 2.08 are shown bevelled as, at'208a '(see, Fig; 5) and are. adapted to'enga'ge the similarlylbevelled ends of the core tral portion 202 of the member I93 and has two nember I,82 ;of thedevice' I; The'lower ends of the corernembers 200include'a flattened portion on t h ei sidesfthereoi where theyengage the core members I83 of the device I16 (see/Fig. 9);

' The header member I94 is mounted on the cenchambers formed therein, a lower chamber ZIO and angupper chamber 2I2.' The upper chamber ZIZ h asr an. inlet conduit 2l3 opening thereinto 1 and the lower-chamber 2 I0 has an outlet conduit M opening thereinto for circulating temperature controlling fluid therethrough'. 'In thelow'er'face;

thereof the, header member I94. has a plurality of apertures 2 I 5 therein opening into the lower chamberfZ Ill. The apertures 2 I5 matchthe num-' ber of cylinder core'members 201 and open thereinto. Furthermorein' the lower face thereof the header member I04 has a pluralityofreduced ap-' 2I0 therein opening into the lower chamher 210. The apertures 2H5 correspond in. numand open 'thereinto.

. Theheacler member I94 include s. a plurality of depending conduitsfl I 1 which. are positioned in the apertures .2I5. The upper ends gofi the con- I I openinto the upperchamber 2| 2 and the lower ends extend downward to adjacent the low- I er ends-of the core-members 201. "The temperature controlling fiuid'is adapted to circulate from the" upper chamber 2 I2 down through the. conduits 2 IT intothe core members 201,.thence up-,

wa'rdly therein: and through. the apertures 2I5 intothe lowerjchamber 2 I0.

The header member. I 94 further includes a plurality of depending conduits 2I8 which "are positioned in theapertures 2 I 6.-. The upper ends of v the conduitstit open into the upper chamber 2H! and the lowerends extend downward-toadjacent the. lower .of the core members 208 and 209.

The temperature controlling fluid is adapted to circulate-from the-upper chamber '2I2 down through the 'conduits'EIB into the core members 208 and Nil/thence upward-therein and through the apertures 2H5 into the lower: chamber 2G0. The top member 13 includes a plurality of apertures llfiV'thereinin which'the core members 20! are positioned and a plurality of apertures 208 in which core members 208; and 200 are "positioned when the rnold apparatus is closed. When mold apparatus opens thepisto'n" rods IG'I re the gate member T92 and the member I93 ;upwardly so that:thelowenends of the core with a "common exhaust conduit 23L I duits 220 and 229 are providedfor the purpose of her to the number or; core members 208 and 209 fluid into and out of said cylinders. .ends of; th piston rods essays; positioned in suitably. apertured bosses 237 integral with and depending from the table 232.

members 201 are a predetermined distance above the base I4 as shown in Fig. 2.

The crank case core members 24 and 21 are mounted'on 'a base 220; Below the base 220 I provide a pair of cylinders 22I each of whioh'has a piston 222 therein and "a' piston'rod 223 ex- ;tending' therefrom. The upper-,endso'f the piston 10015 2255 are positioned in suitable apertured bosses 224 depending from the base 220; Adjae centthe upperend each of the cylinders 2 2I has aficonduit 226 cornmunica tingwith the inte'rior thereof and adjacent the lower, end..a conduit (seeFig. 19) communicating with the inte- .rior thereof for directing fluid into and "out of the cylinder.

' Eachof the core members 20 and 21 is formed hollow and has an inlet conduit 228 communicating with the interior thereof adjacent thebo't tom hasan outlet conduit 229 extending thereinto and upwardto adjacent the upper end thereof Each of the. inlet conduits 228 communitrates witha commonfeeder conduit 230 and each of the outlet conduits 229 communicates circulating temperature controlling fluid through the core members and 21. v.When the mold device opens the pistons 222 through the medium of the piston rods 223 move the core members :24 and 21 downwardly to a positionbelow the, core members 2.3. 25, 26 and28 as shown in Fig. 8.

For supportingthe core members 23, 25, 26 and. .201 provide'auvertically movable table member Whichhas a central' aperture Z33 therein through which the corefmembers 20 "and 21 ex tend. Positioned below'the table 232 and out-j ward from the cylindersflal I provide a pair of cylinders 234- each of whichhas a piston 235 therein and a piston rolcl. 235 extending there- I from. Adjacent r be lower ends thereof each of the cylinders 230 has a conduit 'ltfil (see Fig. 19) communicating with the interior therof and ad- 'jacent the upper-ends a conduit Z communicating with the" interionthereof for directing The upper 0n the upper face thereof the table includesa pair of longitudinally extending dovetail outer I track members 238 and a similar pair of inner The contrack members-230. Each of the tracks 238 has" a bar member 240 thereon which isrecessed to receivev the rail 238 and, which-is connected at one end by a cross bar 2 tracks Z39 like the tracks "HS-each havea bar member 242 thereon which is recessed to receive the rail 239 and which is connected. at the end opposite the crossbar MI by across bar 243. The inner side 1 bars are of. less heightthanthe outer side' inder; 256 which is mounted on an extension portion MT of the table 232, The cylinder 246 has piston 243' therein and; a piston rod 249. ex:- tending' therefrom which is secured asat 250 to a bearing member'25l on-the cross bar 2M.

Fcr'moving the inner bars 202 I provide a cylinder 252 which is mounted on an extension portion 253 of the table 232, The cylinder 252 has a piston 254 therein and a piston rod .2 55 extend-v ing therefroinwhich issecured as at; 256 toa bearing member 25l on the cross bar 243 v A conduit 258. communicates with theinterior 'of thecylinders 246 and 252 adjacent the inner ends thereof and a conduit 259 communicates with the interior of the cylinders 26.6 and 252 ad-. jacent the outerends thereof for directing fluid intoand out of the cylinders as will be explained hereinafter. I

' Asshown in Fig. 4the outer end face of the core member '23 is recessed as at 266 to form the inner portion of the front main bearing boss of vtheblock 3!. The outer end face of the core member 28 has protuberances thereon suchas indicated at 25! to form various portions of the inner face of the rear of the crank case portion of the block 3! and is recessed as at 262 to form the inner portion of the rear main bearing boss.

. The adjacent faces of the core members 25 and 26 are recessed as at 2i3-to forlnthe center main bearing boss oftheblock 3| and asat 23:3 to form a web connecting the-center bearing boss to the -main' body of theblocle. 'l.lhus .it will be seen that the end core members 23 and 28 must be moved inwardly before theyv can be moved down Wardly and. the center core members 25 and 23 must be. moved outwardly before they can be moved downwardly.v

When the mold apparatus opensand after the core members wand 21 have moveddownwardly,

the piston 2% through the medium of the piston- 'rod249.moves the bars 248 and the core mem-- bers 25 and 23 to thelefta predetermined dis-' tance (see Fig. 8). At the same time the core members 25 and 28 are moved the piston-25 t through the medium of the piston-rod 255 moves table 232 adjacent each end includes a protruding lug portion Zfifiiwhich is recessed as at 23? to receive one of the guide rails 265 (see Fig. '7) 1 The core members 23-, 25, 25 and 28 are formed hollow as shown in, Fig. 5 and have an inlet conduit 258 and an. outlet conduit 269 opening tliereinto' through the bottom.' The outlet conduit 269 preferably extends upwardly adjacent to the top of the core. The conduits 258 and 259 are provided for the purpose of circulating temperature controlling fluid in the core members.

For automatically directing fluid to the various cylinders in the proper sequence I provide'a control device which I have indicated generally at 210 in Fig. 16. This control device may be lo cated at any desired position adjacent the device I i. As shown the control'device 21!? includes coaxial spaced cylinders 23! and 2'52 mounted on a suitable base member213. e

The cylinder 271 is closed at its inner end by an integral wall and at. the opposite end by a cap member 2?? which includes an aperturerl inlet portion 215. Adjacent the inner end thereof the cylinder 2H includes a depending apertured outlet portion 213. Intermediate the length thereof the cylinder 21! includes upwardly prothe piston-trod 29L- v k The Switch 0 mp1fisesa re1ay=deviceinclud jecting. apertured' outlet-f portions .211,, 218,113,

2st and ZS'L' As shown in Fig. 17} the cylinder. 212 is closed at its inner'fendby anintegral wall and atthe" outer end by acap inemb'er ifizwhich includes an aperturedinletportion 283. Adjacent the inner end thereof the cylinder 2'12 includes a 'de-' pending apertur'ed outlet portion 284. Inter:

mediate the length thereof the cylinder 2'12 in.- 0

eludes upwardly projecting apertured outlet tions 235, 236,281, 235 and239.

The cylinder 21! a: piston mounted on. a piston rod 29} which extends out;

of the cylinder 2' through asuitable packing gland .292; and into the. cylinder 272 through a suitablepacking gland 29 3;wheirein it hasapis- The working face of, towards. the. cap member, 214. of thecylinder Z'H and the. working face. of the piston 2fl4 isd jq rected towards thefc'ap member Z'BZpf the cylin der 272. The. pistons "230 and" 294*aie so ar---;;;'-'

ranged that when the. piston 290 is between the outlet 27?! and. the inlet 12 'l 5 asshown 16", l

235 andtheoutlet 284=assh0wn in Fig.:l7. 1 i

the piston 294 is positionedfbetween the outlet Intermediate thegcyl-indersfll a'rid 2 'l2the pis tonrod-fifli includes a: gear toothed rack portion 3 295 which is engaged by-a pinionge'ar 296 "on a shaft 291 which is suitably journaled in a bracket 298; The shaft-29! also hasfa wormgear 299 the armature shaft.of areversible motor 30].

thereon which meshes with a-worm pinion. 300 on Forcontr'olling the motor.30.l I-provideswitch members =3ElZ and 393 which are positioned above thepiston rod 291 and supported a predetermined J. distance apathy/suitable brackets 304.;

.In Fig. 18 Ihave shown a-diagram of=the elec.-;v

trica-l circuit for controlling the motor 3M.

shownthe switchpdevice 302 comprises a relay greater. length. than the 1 arm: 30'! a and the arm 303 is adaptedfto be lengaged by apin 309 on,

ing an electro-magneticcoil 3m which is adapt ed when energized toattract armaturearms 3| I and 312. ..'I he arms'3ll and- 3l2'areconnected by a bar 3l3fand the arm 3 is of greater length than the arm 312 and the arm 3! I is adapted to" be engaged by'the pin 309 on' the piston rod 29!.

For peratingthe' relay of the switchv device 3532 I provide a push button switch 3| 4' and for operating. the relay of the switch device 363. 'I-

provide a' pu'sh button switch 3l5. One terminal of the switch 3M is connected to one terminal of the switch 3|5 by a wire 3l6 which in turnis of electricalenergy which is shown as a battery 3m. On'e terminal ofthe forward [field of the.

motor 3B! is connected to one terminal' o'f the reverse field by a wire 3|9which in 'tu rn is con nected torthe wire',3l1 by a wire 320.

One end of the coil 365. is connectedto one endof the coil am by a wire. 32! which. in turn is connected by a wire 322 tothe other side of the battery 3I8.

The other terminal ;of the switch 3! is con- 305. (Thus whencontactis made. between the two I Q 170; nected by a wire .323 to the other end of the coil terminals of the switch 314' current is directed fromthe battery 3l8jthrough" the wires -3l6, 3|!

and 323 to the coil 305 and from the coil back to device including an .-.electro-magnetic "coil .305; 40 which is-adaptedwhen energized to attract. arma-jf ture arms :306. and 30 1." The arms 306' and 301' are connected by a bar 308 and-the arm 306 -isof connefiediby a 'Wire'3l'l to one side of a source the battery through the wires 32| and 322 thereby energizing the'coil 305.. 3

The other terminal of the switch (H is connected by a wire 324 to the otherend of the coil Thuswhen contact is made between the two terminals of the switch 3I5 current is directed from the battery 3I8 through the wires 3Ifi, 3H and 324 to the coil 3I0 and from the coil 310 back to the battery through the wires 32! and 322 thereby energizing the coil 3l0.

1 I The arm 312 of the switch device 303 is adapted.

to engage a contact 325 which is connected by a h The wire 320 has a switch 323' interposed therein .for a purpose which will be explained hereinafter Thev arm 3I I is adapted to engage a contact ,wire-BZG to the wire 3|! and the amr'3 I2 is connected by a wire 326 to the wire 31! and'the arm M2 is connected by a wire 32'! to thewire 324.

328 which is connected by a wire 329 to the otherterminal of the forward field of the motor l.

The arm 3H is connected by a wire; 330 to the wire 322. Thus when the coil 310 isenergized as previously explained and attracts the arms 3II and 3I2the arm 3 engages the contact323 thereby establishing a circuit-from thepbattery 3"! through the wires 322, 330 and 329 totthe mo- 'tor 3|0 and from the motor through wires 3l9 and'320 back to the battery whereupon the motor operates and through the medium of its as sociated gear train moves the piston rod 2 0I towards the cylinder H2.

engages the contact 325 thereby establishing a circuit through the wires 3H, 325, 321 and 324 to the coil 3H3 which circuit retains the coil 3!!! energized after the circuit is broken .throughthe release of push button 3I5. v I

Thus the motor continuesto operatetoumo-ve the piston towards the cylinder 372 until the pin 303 on the piston rod. 29I engages the arm 3 and moves it out of engagement with the contact 323 and the arm 3I2 out of: engagement with the contact 325 thereby breaking the circuits to the motor 30I and the coil 3") whereupon the motor 30l ceases to operate and the pistonxrod ceases to move towards the cylinder 212.

The operation of the electrical controls and the action of the control device 213 just d escribed is that which occurs when the mold :device is 'operated to an open position. The followingd'escription is that which occurs when the vmold device is operated to a closed position] The arm 30? of the switch device 302 is adaptedto engage a contact :33I which is connected by a wire 332 to the wire 325 and the arm 30'! is connected by a wire 333 to'the'wire 323. T e 841111306 is adapted to engage a Contact 334v which isconnected by a wire 335 to the other terminal of the reverse field of the motor 30!. arm 335 is connected by a wire 335 to the Wire 3272. Thus when the coil 305 is energized as previously described and attracts the arms 333 and 301 the arm 306 engages the contact thereby establishing a circuit from the battery j 3I8 throughthe wires 322, 336 and 335 to the motor am. and through the wires are and 320 back to the battery whereupon the motor operates and through the medium of its associated gear train moves the piston rod 23I towards the cylinder 21 I At the same time the arm 306 engages the contact 334 the arm 30? engages the contact 33! I therebyestablishing a circuit throughthe wires 3H, 326, 332,.333 and 323 to the coil 305 which circuit retains the coil 305- energized after the At the same time the arm 31! engages the contact 328 the arm 3I2' the outlet 285 of'the control cylinder 212. I conduit 353 is c onnected by a conduit 3E3'to the circuit is broken through the release of the push button 3I4. Thus the motor 30I continues to cylinder 2' until the pin 309 onv the piston rod engagesthe arm 305 and moves it out of engagementwith the contact 334 and the arm 30'! out of engagement withthe contact 331 thereby breaking the circuit to'the motor and the coil 305 whereupon the motor ceases to operate and the piston rod 23! ceasesto'move towards the cyIinderZ'H.

- In Fig. 19 'I'have shown in diagram the conoperate to move the piston rod 29I towards the nections between the control device 210 and the I various operating cylinders of themold device it.

As shown the inlet 275 of the. cylinder 2' is connectedby a conduit 340 with a constant pressurefl'uid supply reservoir 34l. 283 of the cylinder. 212 is connected by a conduit 342to'1 the conduit 340 and the outlet 284 isconnected by a conduit 343 to an exhaust pressure reservoir 344. "The outlet 213 of the cylinder" Q fill is connected by a conduit 345 to the conduit 343. The reservoir 344 is connected by a conduit 345 cto' the intake side of a fluid pump 34'! and thecutlet side of the pump is connected by a conduit 348 to the pressure reservoir 34L The outlet 2110f the control cylinder 21! is connected by a conduit 350 to the inner conduit Hi5 of theoperating cylinder I09 the upper con- I duit N5 of which is connected by a conduit 35l to the outlet 285 of thecontrol cylinder 212. A

conduit 352 connects the conduit 350 with the upper conduits 225 of the operating cylinders MI and thelower conduits ZZ'I-are connected by a conduit 353 to the, conduit 35L The inner conduit I48 of the operating cylinder I44 is con nected to the conduit 352 by a conduit 354 and the outer conduit I50 is connected by a conduit 355 60 the' conduit 353.

The inner conduit I63 of the operating cylin-v der I58-is connected by a conduit 355 to the con-' a conduit 36!. The conduit360 is connected by a conduit 352 to a conduit 353 which in turn' is connected to. the outlet 218 of the control cyl inder 21!. 'The conduit 35! is'connected by a conduit 364 to the conduit 353. The upper conduits H0 of the front pair of operating cylin- I are connected by a conduit 335 and the I upper 'conduitsdl'fi of the rear pair of operating cylinders Hi5 are connected by a conduit The conduit 355 is connected by a conduit 36'! to a'conduit 358' which in turn is connected to The conduit 358'.

The conduit 258 which connects the'inner ends of the cylinders 243 and 252 is connected by a conduit 310 to the conduit 353 and the conduit 353 which connects the outer ends of the cylinders 246 and 252 is connected bya conduit 31! to the conduit 338.

The inlet The lower conduits 99 of the operating cylin- 7 upper conduits areconnected by a conduit 3'i2and the I33 are connected by a conduit- 75,-;piston I45 of the cylinder I43 and the piston I 59 conduit 383 The lower conduits 'r I-05.r;of. the operating cylinders iIlI ar'ejconnectedxby aconduit1314 and the upper conduits I06 are connected by a con- 'duit 315. Ihe lower connecting conduits 312 of the cylinders '93 are connected by a conduit 316 to the upper connecting conduit 315 of the cylinders IGI and the upper'connecting conduit 313 of the cylinders 93 is connected by a conduit 3-11: to-the lower connecting circuit 314 of the cylinders If. The conduit 315 is connected by a conduit 318 to the conduit 318 and the conduit 314 is connected by a conduit 319 tothe conduit 31!. Y

'26 is connected by a conduit 384 to the outlet289 of the control cylinder 21I and the outer conduit 52 is connected by a conduit 385 to the outlet 288 of the control cylinder 212.

The inner conduit I33 of the control cylinder I38 is connected by aconduit 386 to the conduit 38 i and the outer conduit I34 is connected by a conduit 381 to the conduit 385.

The inner conduit 8Ifof the operating cylinder 16 is connected by a conduit 388 to the conduit 384 and the outer conduit 82 is connected by a conduit 3789 to the conduit 385.

The upper connecting conduit 59 of the operating cylinders 53 and 54 is connected by a conduit 398 to the outlet 28I of the control cylinder 21I and the lower connecting conduit 58 of the cylinders 53 is connected by a conduit 39I to the outlet 289 of the control cylinder 212.

The control device 210, the reservoirs MI and 344 and the pump 341 are preferably located in a suitable position above the uppermost conduit connection to the operating cylinders so that the conduits will not drain when there is no pressure in the conduits. v

The control push'buttons 3I4 and 3I5 may be located at any position convenient to the operator of the mold apparatus I0.

To open the mold apparatus I 0 the operator presses the push button 3I5 thereby causing the motor 39! to operate and move the piston rod 29!; towards the control cylinder 212 as previously described. As the piston 298 is movedby.

the piston rod 29I toward the cylinder'212 it successively passes the outlets 211, 218, 219, 280 and 28! of the cylinder 21l. As the piston 299 passes the outlet 211 pressure is transmitted from the inlet conduit 348 into and through the conduit 358 into the inner end of the cylinder I89 thereby forcing the piston H0 outwardly which through the medium of the piston rod H2 moves the core member 'II outwardly as previously described and shown in Fig. 1 and Fig. 6.

At the same time pressure is transmitted from the conduit 352 into the upper ends of the 'cylin-. I

ders 22I thereby forcing the pistons 222 downwardly which through the medium of the piston rods 223 move the crank case core members 28 and 21 downwardly as previously described and.

shown in Fig. 8. Furthermore at the same time pressure is-transinitt'ed from the conduit 352' into the conduits 358 and 358 thereby forcing the of*th"e"" cylinder lite-o t ardly; I As t e pistn M5 is thus moved it movesfthrough the medium of the piston rod M8, the endcore member: 29' outwardly as previously described and 'shovvnfin v F'igs. 2 and 3;

Asthe piston I59 is forced'outwardly it' moves,

through the medium of l the piston rod itfljth'e. end core member 2! outwardly as previously'de I scribed and shownin Figs. 2 and8'. Still further 1 at thesame time pressure is transmitted 'ir'om .theconduit' 358 through the conduit 358 into I the inner ends of the cylinders I85 thereby forcing the pistons 58'! outwardly which move through the medium of the piston rods I88, the

core member I18 outwardly as previously do; T.

scribedand shown in Figs. 1 and 6.

As the piston 298 and the piston rod 29I move 1 toward the control cylinder 212 the piston 294 therein moves towards the inlet 233 thereof. As H i the piston 29d'thus moves it first successively ref stricts pressure from the inlet conduit 342. to I p the outlet conduits 285, 286,281, 288 and 289 and then allows the. pressure in the 'conduitsasso ciated with the outlets 285, 288,- 231, 288 and 289 to be. transmittedthroughthe cylinder 212 into the outlet conduit 288. i

The exhaust fluid under pressure from the out er-end of the cylinder I89 is transmitted through the conduit 35! t'o'the outlet 235 of the control cylinder 212. The exhaust fluid under pressurefrom the outer ends of the cylinders I88 is transmitted through the conduit 359 into the conduit 35I and the exhaust fluid under pressure from the lower ends of the cylinders 22I is transmitted 7 through the conduits 353 into the conduit .35I'. g The exhaust fluid under pressure from the outer.

end of the cylinder. M4 is transmitted through 1 the conduit 355 into theconduit 353 and the-" exhaust fluid under pressure from the outer end I of the cylinder I58 is transmitted through the conduit351 into the conduit 353.

Whenthe piston'299 of the control cylinder 21 I '1 passes the outlet 218 fluid under pressure is trans? mitted from the inlet conduit sat through the cylinder 21I into the conduit 333. From the conduit 353 fluid under pressure is transmitted 7 through the conduits362,384, 38!)"ahd 38l'int0 the lower ends'of the four cylinders I thereby forcing the'pistons I and associated piston rods it? upwardly. As'the piston rods I61 move up; wardly they move the gate and core supporting member I8 unwardly as shown in FigJ'Z. After l the member i9 has moved upwardly a predetermined distance the collars H2 on /the pistonjfi '55 rods I 81 engage the top member I8 and move it' upwardly a predetermined distance as 'shown in Fig. 2. Fluid'under pressure is also tran'srnittedif I from the, conduit 383 through the conduit 318 and j theconduit 258 into the inner ends of the cylin-,'

ders 243 vand252 forcing the piston 248 of the cylinder 2% and the piston 254 of the cylinder 252 outwardly. As the piston 228 is thus moved it, through the medium of the piston rod 249' and the bearing member 25l, moves thecrank case core members 25 and 28 as previously de'-" scribed to the positions shown in Fig. 8.

As the piston 254 moves outwardly it, through the medium of the piston rod 255 and the bearing member 251, moves the crank case'core members 1 23 and 26 as previously described to the positions. shown in Fig. 8;

At the same time fluid under pressure is trans? mitted' from the conduit 31!]. through the con-,

duit-318 into the conduit 312 into the lower ends.

ort e crlind rsflsandmto the conduit v3.15. and

. the pistons 93 'move'upwar'dly they, through the medium of the piston rods 96, move the core member 89 upwardly a predetermined distance as previously described and as shown in Fig.6. As the pistons I02 move downwardly they, through the medium of the piston rods I03, move the core member 10 downwardly a predetermined distance as previouslydescribedand shown in Fig. 6.

'I'heje'xhaust fluid under pressure'frcmthe up per ends of the four cylinders I65 is transmitted through conduits 365, 366, 361 and 369into the conduit 368. The exhaust fluid under pressure from the outer ends bf the cylinders 246 and 252 is transmitted through the conduits 259 and 3H 1 The exhaust fluid under pressure from the upper ends of the cylinders 93 into the conduit 368.

is transmitted through the conduits 313, 311 and 319 to the conduit 3'". The exhaust fluid under "pressure from the lower ends of the cylinders ml is transmitted through the conduit 3'l4to the conduit 319. V

i when the piston 290 in the control cylinder 21] passes the outlet 280 fluid under pressure is transmitted from the inlet conduit 340 through the cylinder 21 'i nto the conduit 388 and thence into; the inner end of the cylinder 16 thereby forcing the piston 11 outwardly. As the piston 'lllisithus moved it, through the medium of the piston rod I8, moves the mold body member I 6 outwardly as previously described and shown in Fla j At the sametime fluid under pressure is transmitted from "the'conduit 388 through the conduit 384 into the inner end or the cylinder 46 thereby forcing the piston 41 outwardly which, throughthe medium of the piston rod 48, moves themold'body member I outwardly onto the table member 40 as previously described and shown in Figs. -1 and 6.

" At the same time fluid under pressure is trans-,

mitted from the conduit 384 through the conduit-386 into the inner end of the cylinder I30 thereby moving the piston rod I3I outwardly which through the'medium of the piston rod I32 moves the angularly movable mold member II outwardly, as previously described and shown in Figs. 1 and 2. 5

, The exhaust fluid under pressure from the outer end of the cylinder 16 is transmitted through the conduit 3891to the outlet 288 of the control cylinder 212. The exhaust fluid under pressure from theouter end of the cylinder 46 is transmitted through the conduit 385 to the conduit 389 and the exhaust fluid under pressure from the outer end of the cylinder I30 is transmitted through the conduit 38'! to the conduit When the piston 290 passes the outlet 28I fluid under pressure is transmitted from the inlet conduit 340 through the cylinder 21! and into and through the conduit sat through the conduit 59 into the upper ends of the cylinders 53 and 54 therebyforcing the pistons 55 downwardly. As the pistons 55 'movedownwardly they, through the medium of the piston rods 56, move the table member 40 downwardly as previously described and shown in Fig. 2. The exhaust fluid under pressure from the lower ends of the cylinders 53 and 54 is trans- .mitted through the conduit 58 and the conduit '39I to-the outlet 289 of the control cylinder 212.

* After the table is lo'v'ver'edthe cast engine block 3| may be removed from the mold device by any desirable means.

To closethe mold device the operator presses the push button i4 thereby causingthe motor 30I to operate and move the piston rod 29I towards the cylinder 2' as previously described.

As the piston 294 is moved towards the cylinder 21! it successively passes the outlets 289, 288, 281, 286 and 285. As the piston 294 passes thev outthroughthe cylinder 212' into and through the conduit 39! and through the conduit '58into the let 288 pressure is transmitted-from the inlet 342 lower ends of the cylinders 53 and 54 thereby end of the cylinder '16 forcing the piston 11 inward which through the medium of the piston rod '18 moves the mold bbdy member I 6 inwardlyas previously described to the position shown in Fig. 5. 1 At the same time pressure is transmitted through the conduit 385 into the outer end of the cylinder 46 thereby forcing the piston 41 inwardly which, through the medium of the piston-rod 48, moves the mold body member I5 inwardly as previously described to the position shown in Fig. 5. Furthermore at the same time pressure is trans.- mitted'from the conduit 385 into and through the conduit 38'! into the outer end of the cylinder I thereby forcing the piston which, through the medium of the piston rod I32, moves the angularly movable mold member II inwardly as previously described to the position shown in Fig. 9.

c The exhaust fluid under pressure from the inner end-of 'the cylinder 16. is transmitted through the conduit 388 to the outlet 280 of the control cylinder 21!. The exhaust fluid under pressure from the inner end of the cylinder 46 is transmitted through the conduit 384 to the conduit' 388 and the exhaust 'fluid under pressure .from the cylinder 130 is transmitted through the conduit386 to the conduit 384.

- After the mold'bodie's I5 and I6 have been moved to their closed pbsition the operator stops the motor'30l by opening the switch 326'. The water jacket corej H1 is then placed in position and thereafter the operator closes the switch 326 I3 I inwardly and presses the push-button 3I4 to again start the motor 30! to move the piston rod 29! towards the 'o'ylinderZII.

When the piston 294 in the control cylinder 2 12 passes the outlet 28? fluid under pressure medium. of the piston rods 236, move the table 232 and'the crank case core members 23, 25, 26 and 28 thereon upwardly as previously des'cribedto the position shown in Fig. 4. Y

The exhaust fluid under pressure from the 1 upper ends of the cylinders 234- is transmitted,

through the conduitBBI into and through the 219 orthe control cylinduits 365, 366, 367- and 369 into the upper ends of the four cylinders 65 forcing the pistons I66 and piston rods I67 downwardly. As the piston rods l6! move downwardly they first deposit the top member It in position on top of the'mold body members I5 and I6 and then continue down.- wardly until the gate and core supporting member I 9 is in position on top of the top member I8 as shown in Figs. 4 and 5.

At the same time fluid under pressure is transmitted from-the conduit 368 through the conduit 3H and the conduit 259 into the outer ends of the cylinders 246 and 252 thereby forcing the piston 248 in the cylinder 286 and the piston 254 in the cylinder 252 inwardly. As the piston 248 moves the bearing member 25I and the crank case core members 25 and 28 toward the piston 252 as previously described to the position shown in Fig. 4. As the piston 254 moves inwardly it, through the medium of the piston rod 255, moves the bars 242 and the crank case core members 23 and 26 towards the piston 246 as previously described to the position shown in Fig. 4.

Furthermore at the same time fluid under pressure is transmitted through the conduit 319 and thence through the conduit 31! and the conduit 313 into the upper ends of the cylinders 93 there-' by forcing the pistons 96 therein downwardly. At the same time fluid under pressure is transmitted through the conduits 314 into the lower ends of the cylinders IIII thereby forcing the pistons I 62 upwardly. As the pistons 96' move downwardly they, through the medium of the piston rods 97, move the core member 69 downwardly as previously described to the position shown in Fig. 5. As the pistons I62 move up wardly they through the medium of the piston rods I03 move the core member l6 upwardly as previously described to the position shown in Fig.5.

The exhaust fluid under pressure from the lowerends of the four cylinders I65 is transmitted through the conduits 360, 36I, 362 and 364 into and through the conduits 363 to the outlet 218 of the control cylinder '2'. i

The exhaust pressure from the inner end of the cylinder 236 and the cylinder 252 is transmitted through the conduits 258 and 316 to the conduit 363. The exhaust fluid under pressure from the lower ends of the cylinders, 93 is transmitted through the conduits 312, 316 and 318 to the conduit 310 and the exhaust fluid under pressure from the upper ends of the cylinders MI is transmitted through the conduits 315 to the conduit 373.

When thepiston 294 passes the outlet 285 fluid under pressure is transmitted from the inlet conduit 342 into and through the cylinder 212 and into the conduit I into the outer end of the cylinder I69 thereby forcing the piston H6 in wardly. As the piston IIil moves inwardly it, through the medium of the piston rod II2, moves the core member ll into position between the core members 69 and I9 as previously described and shown in Fig. 5.. At the same time fluid under pressure is transmitted from the conduit 35I through the conduits 359 and I 9I into the outer end of the cylinders I 86 thereby forcing the pistons I67 inwardly which, through the medium of the pistonrodsfISB. move the core member I16 inwardly as previously described to the position shown in Fig. 5. I

Furthermore at the same timefluid under pressure is transmitted from the conduit35I through the conduits 353 and 221 into the lower endsot p the cylinders 22I thereby forcing the pistons 222 upwardly. As; the pistons 222 move upwardly they, through the medium of the piston rods 223,,

move the table 220 and the crank case core mem bers 24 and 21' thereon upwardly as previously described to the positions shown in Fig. 4. Still further at the same time fluid under pressure is transmitted from'the conduit 353 through the conduit 351 and 355m the outerends of the cylinders I44 and I58 thereby forcing the piston I45 of the cylinder "(inwardly and the piston I59 of the cylinder I58 inwardly. 'As the piston I45 moves inwardly it, through; themedium of the piston rod I46, moves the end core -member 26 inwardly as previously described to the position shown in Fig. 4. As the piston I59 moves inward- 1y it, through the medium of. thepiston rod I60,

moves the end core member-2l inwardly as previ ously described to the position shown in Fig.

The exhaust fluid under pressure 'from the I inner end 01' the cylinder-1N9 is transmitted through the conduit 356 to the outlet 21-1 of the pressure from the inner ends of the-cylinders I44 and I58 is transmitted through'the and 356 to the conduit 352. The mold device III is now completely close and is ready to receive molten metal which is poured into the aperture I95 of the gate member conduits 354- I92 and flows downwardly through the apertures H1 in the top member into the recessed portions I of the mold body members I5 and I6 to form an Q engine block.

From the foregoing description it will be-apparent that I have provided a. novel mechanical mold device for casting engine blocks.

Having thus described my invention I claim:

1. In a permanent mold apparatusa base, a table mounted adjacent said base, means-to move said table from a lowered position below the 'baseto' a location level with the base, amold slidably mounted on said table, means on the table to move the mold to and from molding:

position, a second mold member, means to mount the second mold member on the. base for movement towards and from molding position, said first and second mold members having parallel movement and said table having a movement in 1 2. In a. mold devicefor -forming engine blocks;

a base member, a pair of opposed moldbody members, said body members being recessed to each form the outer surface-of one half or an engine block, means to move said body members towards and from each other; atop mold member engaging the upper portions 01 said body mold members, means to raise and lower said top member, means to mount the gate member for said 1 

